Hoi An weather in October
Hoi An averages 28°C by day and 24°C at night in October, with the sea at 29°C and about 506 mm of rain in the month. That is about 3°C cooler than September.
Day
28°C
Night
24°C
Sea
29°C
Rain
506 mm
Flight from London
12h
What October feels like
October is hot but wet in Hoi An: rainy season, so pack for showers.
The sea is warm at 29°C: comfortable for long swims.
It is rainy season: about 506 mm of rain falls in the month.
That is 13°C warmer than an average October day in London.
Of the 56 sun destinations we track, Hoi An is the #31 warmest in October.
Going to Hoi An in October?
Share the TikToks and Instagram Reels you've saved for Hoi An to Dream Trip. It finds the places, pins them on a map and builds your days around them.
Want it warmer in October?
These are hotter than Hoi An this month for at most an hour and a half more flying:
Hoi An weather by month
October is highlighted. Compare with September and November, or see the full year in Hoi An.
| Month | Day | Night | Sea | Rain |
|---|---|---|---|---|
| January | 24°C | 20°C | 24°C | 167 mm |
| February | 25°C | 20°C | 24°C | 85 mm |
| March | 27°C | 22°C | 25°C | 67 mm |
| April | 30°C | 24°C | 26°C | 65 mm |
| May | 32°C | 26°C | 28°C | 89 mm |
| June | 34°C | 27°C | 30°C | 103 mm |
| July | 33°C | 27°C | 30°C | 153 mm |
| August | 34°C | 27°C | 31°C | 154 mm |
| September | 31°C | 25°C | 31°C | 285 mm |
| October | 28°C | 24°C | 29°C | 506 mm |
| November | 27°C | 23°C | 27°C | 432 mm |
| December | 25°C | 21°C | 25°C | 376 mm |
Hoi An in October: quick answers
Is Hoi An hot in October?
October is hot but wet in Hoi An: rainy season, so pack for showers. Average highs are 28°C and lows 24°C.
Can you swim in Hoi An in October?
The sea is warm at 29°C: comfortable for long swims.
Does it rain in Hoi An in October?
It is rainy season: about 506 mm of rain falls in the month.
What is the warmest month in Hoi An?
June, at an average high of 34°C. The coolest is January at 24°C.
How long is the flight to Hoi An from the UK?
About 12h direct from London, estimated from the 9,873 km distance. Check your airline for exact times.
Still choosing? See where is hot in October for every destination ranked by temperature, sea and flight time.
How we measured this
Averages of every day in October from 2016 to 2025, from the Open-Meteo historical weather archive (ECMWF ERA5 reanalysis). Sea temperature is the 2023 to 2025 average from the Open-Meteo marine archive. Rain is the average monthly total. Reanalysis describes an area about 25 km across, so sheltered resorts can run a degree or two warmer. Flight time is a distance-based estimate from London Heathrow.
Planning Hoi An in October?
Save the restaurants, beaches and views you find on TikTok and Instagram for Hoi An straight to a map, then let Dream Trip turn them into a day-by-day plan.
